928 GT introduced as a late model year addition (It appears that the 928 S4 5M was still built during 89 GT production. It is critical that claims of a 1989 928 GT be verified both visually and with option codes)

1989 928 GT production begins in March 1989 and ends in June 1989

The earliest 1989 928 GT currently recorded has a VIN of 1107

1989 928 GT power increased to 326 bhp & 317 ft/lbs

1989 928 GT is differentiated from the 928 S4 in the following ways:

Rolled fender lips front and rear

Lightened twin outlet exhaust

Shorter shift lever

Different intake (same as GTS)

GT camshafts

17 mm Rear wheel spacers

Short ratio manual transmission

Wheels were 8x16(front) and 9x16(rear) "club sport" with an offset of 60mm with 225/50 16(front) and 245/45 16(rear) tires

1989 928 GT is further differentiated from the S4 by the following options (option codes are located on the inside cover of and original owners manual or on a white sticker located in the rear hatch area opposite the spare tire and above the gas tank):

Wheels were 7x16 front and 8x16 rear flat disc with an offset of 65mm(front) and 52.3mm(rear) with 225/50 16(front) and 245/45 16(rear) tires

Standard on 1990 and 1991 928 GTs and optional on S4s were 7x16(front) and 8x16(rear) "Design 90" style wheels with an offset of 65mm(front) and 52.3mm(rear) with 225/50 16(front) and 245/45 16(rear) tires

VIN tags on all body panels eliminated

1991 928 S4/GT VIN Range - WP0AA292_MS810001 - 0448

Shorter more ergonomic shift lever in the 91 928 GT

Cooling flaps in front of radiator eliminated

Improved door seals to reduce water dripping on occupants during rainy weather